tained with almost amazing prompt- 

 ness. Again, in another class of cases, 

 the reverse may be true. 



Although, in a goodly proportion of 

 the cases to be discussed in the follow- 

 ing chapters in this treatise, the prac- 

 titioner must come into direct and fre- 

 quent clinical contact with the patho- 

 logical conditions themselves in order 

 to become thoroughly acquainted with 

 the clinical and physical facts referred 

 to, he will derive much benefit from a 

 careful reading of these chapters, to 

 the extent that he will note not only 

 new lines of thoueht with regard to 

 iodine medication, but he may also lay, 

 in their reading, the foundation for an 

 ethical system of iodine therapy in so 

 far as this is possible in the light of 

 our present acquaintance with the sub- 

 ject. 



10 



